Some years ago in the 80s I was doing a low level transit back to UK and remember clearly the Albert -Baupame Rd as a nav feature on my map and due to the low cloud base and rain I was using the road,it is straight and I had no idea of its significance.
Inspector Clueless - You may be aware that same straight Roman Road, the D929, was also used as a nav feature many years before you by the Mosquito navigators of the famous 1944
Amiens Prison Raid aka Operation Jericho.